ExistsIn doesn't work with list model or sub-properties without duplicating the lookup on the parent model

[fsateler]

Actually, I have not tested if submodels work. But in list models it doesn't:

@model IList<MyModel>
// Snip form and section...
for (int i = 0; i < Model.Count; i++) { 
        @s.FieldFor(m => model.Category).AsDropDown()
}

class MyModel {
    [ExistsIn("Categories""Item1", "Item1")] public string Category {get;set;}
    public List<Tuple<string>> Categories { get; set; }
}

This throws an exception:

ExistsIn: No property Model.Categories exists for looking up values for property Model.Category.

The problem is that ChameleonForms tries to lookup the referenced value from ExistsIn in the IList model, which of course doesn't exist.

This is version 1.2.0 from nuget.

[robdmoore]

A workaround may be to make the list a sub-property of the parent model. You will likely need to define the Categories property in the parent model as well though, which is a known issue as per https://trello.com/c/JNdQ3s9Y/141-using-existsin-on-a-nested-model-class-doesn-t-work.

Happy for anyone to come up with a fix to either.